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4 Sheets-Sheet 1.

o. A. R.-D1MON. CARTRIDGE SHELL vTRIM'MING- MACHINE. No. 351,747.

-(N0 Model.)

Patented Nov. 2, 1886.

)wm @4km (Nb Model.) y4 sheetssheet 2.

0. A. R'. DIMON. GARTRIDGE SHELL TRIMMING MACHINE.

Nn. 3515/'47. Patented Nov. 2, 1886.

Wimasm Mw @mm (No Model.)

' l 4 sheets-sheen s.

C., A. R. DIMON.

Patented Nov, z, '1886.-

rwiaaga l Xw @km I f c-M f N4 PETERS. Pnalwuxhagmpher, wzsningmn. u c.

(Hommel.) 4 Sheetssheet 4.

1 v G. A. R. DIMON. GARTRIDGB SHELL TRIMMING MAGHINE.

No. 351,747. -Paented Nov.. 2, 1886` Wmema v' 4 UNITED STATES PATENTOFFICE.

CHARLES A. R. DIMON, OE LOWELL, MASSACHUSETTS, ASSIGNOR TO THE UNITEDSTATES CARTRIDGE COMPANY, OF SAME PLACE.

CARTRIDGE-SHELL-.TR-IMMING- MACHINE.

SPECIFICATION forming part of Letters Patentl No. 351,747,dated November2, 1886.

`Application filed September 6, 1886. Serial No. 212,806. (No model.) l

. have invented a new and useful Machine for Trimming Cartridge-Shells,of which the following is a true and complete specication.

My invention relates to machines for trim-l ming orutting oft' the endsof cartridge-shells; and it consists in certain. new and usefulconstructions and combinations ofthe several parts thereof,substantially as hereinafter described and claimed.

In the drawings, Figure l s a side elevation of a machine for trimmingcartridges provided with my improvements. Fig. 2 is a top plan view ofthe same. Fig. 3 is a section of the same on the line X X of Fig. 1.Fig. 4 is a detail view of the clutch or dogand my auxiliary cutter,showing the several positions of the latter. Fig. 5 is an end view ofthe clutch. Fig. 6 is a side view of a cartridge-shell before beingtrimmed or cutoff in the machine. Fig.

`7 is a side view of the same, partly in section,

showing the shell when trimmed as heretofore in the machine; Fig. 8 is aside view of the same, partly in section, showing the shell when trimmedand operated upon by my auxiliary cutter.

A is the bed-plate of the machine, supporting at one end of it astandard, Al, throughwhich reciprocates back and forth theplunger a andthe sleeve a. Near the other end of the bed-plate are two standards oruprights, A, supporting boxes at their upper ends, in which revolves thehollow mandrel M, driven bythe pulley M from a suitable counter-shaft.mandrel has a bore through its center of sufficient diameter to allowthe shell to pass through it, as shown in Fig. 4. i Y

A post, a2, is fixed rigidly in the bed-plate, and has passing throughita screw, c3, tapped into it and resting against the sliding standardA3, attached to the bedplate. t The upper end of the standard A3 itsinto the 'groove a* around the mandrel M, and by setting up the screw(t3-the standard A3 is made to take the thrust of the mandreloff fromthe boxes in the standards A2 A2 and relieve them.

B is an .inclined guide or feeding trough, attached at its lower end tothe block A4, the

This,

latter resting upon the bed-plate A. In the upper surface of this guideisa groove, b,which receives the shells sidewise and allows them toslide down into position to be operated upon one after the other as theyare taken away by the plunger a5 from its lower end.

The plunger a5 is round in cross-section and of the proper size to fitthe inside of the cartridge-shell at its outer end, and it is fixed inthe plunger a and moves with it. These plungers are reciprocated(longitudinally by any suitable and well-known mechanism, .and theplunger a5 passes the groove Z) in the feedingplate B in proper relationthereto to enter the lowermost cartridge-shell which has been feddownward through the groove and rests against an abutment opposite thelower end of thelatter. The plunger a5 is'aXially in line with themandrel M, the latter provided on its inner end with a dog for graspingthe cartridge-shells. (Shown in detail in Figs. 4 and 5.) On the mandrelM is placed a slidingsleeve, m, having a conoidal surface upon one end,over which the ends of the bent levers on m are brought to bear, asshown. These levers are pivoted at m2, and carry-upon their oppositeends the blocks mof segmental forn1,itted on their inner surfaces toembrace the car- 1 tridge-shell shown at s, Fig. 5, in 'end view.

The sleeve mis moved longitudinally on the' mandrel M by the lever m,which is pivoted 'at one end upon the vertical pivot m5, and em- .thelarger portion of its conoidal surface' against the ends of thelevers mresting thereon, and closes the blocks mf around theV cartridgeshell,grasping the latter iirmly.

The block A1 has a dovetail groove cut in its upper surface at rightangles to theaXis of lmandrel M. In this groove is fitted a slidingplate, c, upon which is fixed thek upright toolpost c', carrying thecutting-off or trimming tool c2. A set-screw, c3, in the top of the postserves to bind the tool in its slot therein in the usual manner. Vhenthe plate cis moved toward the mandrel M, the cutting-off tool c2 justpasses the faces of the blocks m3 m3 of the clutch,which grasps theshells. In the rear of tool-post c another upright post, c", is xed inplate c, having a hole through it parallel with mandrel M. Through thishole passes a screw-threaded shaft, c5, having nuts c( c engagingwith'it on each side of post c, toadjust and clamp it in the post. Thisshaft carries in its end toward lever m4 a roller, c7, pivoted in itsbifurcated end, which roller bears against the edge of the lever. Theedge ofthe latter' is 'formed of a suitable cam shape where the rollerbears against it, so that as the tool c and its carrying-plate cadvances toward the mandrel M the roller will move lever 'mAk away fromtool c?, and thus close the clutch-blocks m3 m upon the shell, and holdit rmly while the tool is cutting it oil".

A vibrating level', N, is pivoted to the bedplate ofthe machine at n,aud attached at one end by a pivot to the sliding plate c, the other endbeing moved bya suitable crank or other mechanical equivalent working inslot n. Vhen the plunger e is moved forward, it carries its supplementalplunger a5 through the lowermost shell, s, at the lower end of thegroove b, to the closed end thereof, and carries the shell Vforwardbetween the blocks m m of the clutch. At the same time the tool-carryingplate c moves forward, gripping the shell in the clutch at the propel'point,and cutting it off with tool ci.

So far as described the above machine is well known and in common use,and I have describedit so far as is necessary to understand 'myimprovement, further description of its mechanism being unnecessary toits being understood by thosefamiliar with such machines. When the toolc2 cuts off the cartridge-shell, as shown in Fig. 7, it i'orms a slightburr on the cutoff' end, projecting radially inward around lhelatter.This burr has proved troublesome in the subsequent processes ofintroducing the ball into the shell and crimping the latter around it,because it did not allow of that closeness of fit of the ball which isdesirable. Even when removed, the thickness of the metal at the edge cutoff by tool c is disadvantageous in crimping it into the metal of theball, or a groove therein, to secure the shell and ball together.

Myimprovement consists in providing an auxiliary cutting-tool working,incombination with the one before described,to cut away the burr formed bythe latter while' the shell is still held by the blocks m m, and tobevel out the edge of the shell at its cut-off end,as shown at si, Fig.S, making it much thinner at its eX- treme outer edge,whereby it can bemore perfectly crimped onto the ball, and allows the latter to enter iteasier and with a tighter it, and lforms a more perfect junction betweenthem.

E is the auxiliary cutting-tool, pivoted to the face of block A1 at cupon the bell-crank lever c', to one arm of which it is attached. Theother end of lever cis attached to the lever ci by a pivot, c", workingloosely in a slot in the latter and iiXed in the end of the former togive the requisite play to the levers. Lever .ready for crimping uponthe ball.

c2 is pivoted to a short standard attached to the bed-plate at c", andhas its other end made cam-shaped on the'upper edge, as shown in Fig. l.A spiral spring, t, attached to this short standard at one end and tothe tool-carrying arm of lever e' at the other, draws the latterback'ward from the mandrel M. Anothcrspiral spring, t', between the freeend of'` lever ci and the bed-plate, serves to lift that end ofthe lcverto the proper position.

Attached to the sleeve a', and sliding to and fro with it, is the lug orear a", through which a vertical screw-threaded hole is made, with whichthe screw-thread of the vertical rod cT engages. A check-nut, ai, onthis rod serves to bind it in the proper position in the car. The lowerend of' the rod e7 is bifurcated, and has the roller a pivoted betweenits bil'urcations in position to bear upon the upper calnshaped edge ofthe lever e2, when the sleeve a is dra-wn backward from the mandrel llla sufficient distance and depresses the lever at that end. This movementturns the bell-crank lever c on its pivot and throws the tool E forwardinto the cut-oitl end of the shell at the proper angle to form the bevele2 on its edge. cutting oit' the burr on it formed by the tool c'l inthe operation,and leaving the shell as shown in Fig. 8. During thisprocess the shell has remained firmly gripped by the blocks m'" mi andcontinues so gripped until the sleeve c moves forward again to theposition shown in Fig. l. Willen the tool E is withdrawn, the plunger acarries forward'the next shell into the clutch, the sliding plate at thesame time carryingback tool ci and releasing.,r the finishedshell,pushing the finished shell into the hollow of the mandrel beyondthe clutch. The sliding plate c again advances, causing the clutch togrip the newr shell and the tool cL to cut it off, while the sleeve cgoes backward, withdrawing plunger e and bringing forward tool E,tobevel out the end of the shell. The shell is thus trimmed and beveled atone operation, Fig. .l shows the tool E in the act of bevcling out theshell, and the position ol' the tool when withdrawn, 'in dotted lines.The tool is secured in the arm of lever c by means of the sleeveew,attaehed to the arm, into which the shank ol" the tool fits so as toslide in and out, and a setscrew, c, passing through the side of thesleeve and tapped therein. This construction enables me to adjust thetool E accurately to its working position.

It is evident that the roller c may be dispensed with and the rod ai bcallowed to come directly in contact with lever c`',il' desired. [t isalso evident that either of the springs 't or t' maybe dispensed withand the other used alone, if preferred; butIprefer to use bothforgreater certainty and quickness of action.

XVhat I claim as new and of my invention 1s- 1. The combination of therevolving shellgripping clutch provided with the radiallymoving blocksmi" m", substantially conforming IIO . and mechanism for moving the samein and to the exterior of the shell on their inner faces, and mechanismfor moving the 4same in and out, the cutting-off tool c2., mounted onguide- Ways and adapted to move past and in proximity to the face ofsaid clutch transversely to the axis of rotation of the latter, and thereciprocating beveling-tool E, mounted upon a carrier, and adapted toenter the open end of the shell While the latter is held by the clutchand trim or bevel off the inner part ofthe edge thereof, substantiallyas described.

2. The combination of the revolving shellgripping clutch provided withthe radially-` moving blocks m3 m, substantially conforming to theexterior of the shell on their inner faces,

out, the cutting-off tool c2, mounted on guide-l Ways and adapted tomove past and in proximity to the face of said clutch transversely tothe axis of its rotatiom'the pivoted lever e', and the tool E, carriedthereby, and adapted to enter the open end of the shellwhile the latteris held by the clutch and trim or bevel off the inner part ofthe edgethereof, substantially as described.

3. The combination of the revolving shellgripping clutch having theradially-moving blocks m m3, of proper conformation to embrace and holdthe shell, and mechanism for opening and closing the same, thereciprocating shell-carrying plunger a a5, the 'pivoted lever e', andthe tool carried thereby and adapted to enter the open end of said shellafter the plunger-is Withdrawn therefrom and trim or bevel off the innerpart of theV edge thereof, substantially as described.

4. The combination of the revolving shellgripping'clutch having theradially-moving blocks m3 ma, of proper conformation to embrace and holdthe shell,A and mechanism for opening and closing the same, thereciprocat- E ing shell-carrying plunger a a5, the tool E, the

pivoted-lever e', the pivoted lever e2, connected to lever e', and therod al, connected to the plunger, and adapted to move the tool E forwardwithin the shell by contact with lever e2 onthe backward movement of theplunger, substantially as described.

5. The combination of the revolving shellgripping clutch having theradially-moving blocks m3 m3, of proper conformation to embrace theshell and hold it, and mechanism for opening and closing the same, thereciprocating shell-carrying plunger a a5, the tool E, the pivoted levere', the pivoted lever e2, connected to lever e', therod al, connected tothe plunger, and adapted to move the tool E for- Ward within the shellby contact with lever eIl on the backward movement of the plunger, andthe retracting-spring t or t', connected to.one of said levers,substantially as described.

6. The combination of the revolving shellgripping clutch having theradially-moving blocks m3 m3, of proper conformation to embrace and holdthe shell, and mechanism for opening and closing the same, thereciprocatingjshell-carrying plunger a a5, the pivoted lever e', thetool E, carried thereby, and adapte'd to enter the open end of the shellafter the plunger is Withdrawn therefrom and trim or bevel off the innerpart of the edge thereof, and the retracting-spring t, connected to saidlever, substantially as described.

7. The metallic cartridge-shell s, forlned'and prepared for crimpingupon the bullet, substantially as described-tliat is to say, with theinner part of the edge thereof at its open` end trimmed or beveled off,substantially as' described.

CHAS A. R. DIMON.

Witnesses: J As. B. RUssELL, ALBERT W. DAVID.

